Mont Saint Michel, a jewel of Normandie

Le Mont-Saint-Michel is an island and mainland commune in Normandy, France. The island is located about one kilometer off the country's northwestern coast, at the mouth of the Couesnon River near Avranches and is 7 hectares in area. The mainland part of the commune is 393 hectares   in area so that the total surface of the commune is 400 hectares with a population of 50. The island has held strategic fortifications since ancient times and since the 8th century AD has been the seat of the monastery from which it draws its name. The structural composition of the town exemplifies the feudal society that constructed it: on top, God, the abbey and monastery; below, the great halls; then stores and housing; and at the bottom, outside the walls, houses for fishermen and farmers. The commune's position—on an island just a few hundred metres from land—made it accessible at low tide to the many pilgrims to its abbey, but defensible as an incoming tide stranded, drove off, or drowned would-be assailants. The island remained unconquered during the Hundred Years' War; a small garrison fended off a full attack by the English in 1433. Louis XI recognised the reverse benefits of its natural defence and turned it into a prison. The abbey was used regularly as a prison during the Ancien Régime.